HEF40373B Ver la hoja de datos (PDF) - Philips Electronics
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HEF40373B Datasheet PDF : 7 Pages
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Philips Semiconductors
Octal transparent latch with 3-state outputs
Product specification
HEF40373B
MSI
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns
VDD
V
SYMBOL MIN. TYP. MAX.
Propagation delays
E → On
HIGH to LOW
5
10
tPHL
15
E → On
LOW to HIGH
5
10
tPLH
15
Output transition
5
times
HIGH to LOW
10
tTHL
15
5
LOW to HIGH
10
tTLH
15
3-state propagation delays
Output disable times
EO → On
HIGH
5
10
tPHZ
15
5
LOW
10
tPLZ
15
Output enable times
EO → On
HIGH
5
10
tPZH
15
5
LOW
10
tPZL
15
Set-up time
5
Dn → E
10
tsu
15
Hold time
5
Dn → E
10
thold
15
Minimum latch enable
5
pulse width LOW
10
tWEL
15
150 300 ns
60 120 ns
40 80 ns
125 250 ns
50 100 ns
40 80 ns
40 80 ns
20 40 ns
15 30 ns
30 60 ns
20 40 ns
15 30 ns
65 130 ns
30 60 ns
25 50 ns
75 150 ns
40 80 ns
30 60 ns
65 130 ns
30 60 ns
25 50 ns
85 170 ns
35 70 ns
25 50 ns
15
7
ns
10
5
ns
10
5
ns
25
15
ns
15
4
ns
10
3
ns
60
30
ns
30
15
ns
20
10
ns
TYPICAL EXTRAPOLATION
FORMULA
138 ns + (0,24 ns/pF) CL
59 ns + (0,01 ns/pF) CL
36 ns + (0,07 ns/pF) CL
122 ns + (0,06 ns/pF) CL
48 ns + (0,03 ns/pF) CL
39 ns + (0,02 ns/pF) CL
see Fig.7
January 1995
6
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